Obsidian/Atari has released a hotfix to the 1.13 patch. Please either run the in-game updater to patch, or you can use NWN2 Patcher, which allows you to undo patches. If you use NWN2 Patcher, the patch file can be found here. The file you want on that page is nwn2_pcx1_english_from1131407_to1131409.zip .

I thought about going without the hotfix, but Fugitive and Nightiner weren't at the last session, so if they were patching to 1.13 for the first time, it would have given them the hotfix.